GovChime
UEI: SXT8K5HELZE8 • CAGE: 1GZF9

MASTERCLOCK, INC. (MO)

Registration and award facts

SAM.gov registration as of

Net obligations since FY2008
$1.43M
$1,430,869under this UEI
FY2026 obligations
$0
Provisional
Awards and orders
31
with positive net obligations1 IDV vehicle held
Latest action
Aug 28, 2025
SAM.gov registration
Active
Registration expiration date Sep 3, 2027

Registration

Entity structure
Corporate Entity (Not Tax Exempt)
Business start date
Dec 24, 1994 (31 years)
Location
Saint Charles, MO
State of incorporation
Missouri
Purpose of registration
All Awards
Website
masterclock.com

† FY2026 obligations (provisional; DoD awards signed after Jul 28, 2026 are not yet public).

Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 28, 2026 are not yet public.

All federal contractors in MissouriHow these figures are built

Source: SAM.gov entity registration and FPDS contract actions recorded under UEI SXT8K5HELZE8. GovChime does not check exclusions.

Performance

Net obligations recorded under this UEI since FY2008. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.

Net obligations by fiscal year of action

  • FY2025: $21,533
  • FY2023: $24,558
  • FY2022: $151,267
  • FY2021: $12,480
  • FY2020: $833,432
  • FY2019: $19,487
  • FY2018: $117,165
  • FY2017: $66,461
Show all 17 years
  • FY2016: $19,778
  • FY2015: $16,381
  • FY2014: $12,890
  • FY2013: $11,986
  • FY2012: $50,796
  • FY2011: $1,237
  • FY2010: $23,933
  • FY2009: $2,757
  • FY2008: $44,726

Total across 17 fiscal years: $1,430,869

Top awarding agencies

Top awarding sub-agencies

Top NAICS by obligations

Top product and service codes by obligations

  • 5999Miscellaneous electrical and electronic components$845,949, 59.1%
  • 6645Time measuring instruments$145,905, 10.2%
  • 5820Radio and television communication equipment, except airborne$66,406, 4.6%
  • 7021Adp central processing unit (cpu, computer), digital$49,953, 3.5%
  • 6150Miscellaneous electric power and distribution equipment$48,059, 3.4%

Capabilities

SBA certifications

No certification in the SBA profile data.

Product and service codes (PSC)

  • 5820Other Services/Supplies
  • 6645Other Services/Supplies

Federal Capability Statement

We manufacture precise timing systems including digital display clocks, analog clocks, PCIe cards, time servers and generators, countdown timers, PCIe cards, and a variety of other complimentary products for use in time-sensitive operations.

Capabilities & Services

digital clock
timing display
analog clock
time code display
gps server
ntp server
NTP
network time protocol
PTP
Precision Time Protocol
countdown
timer
time zone clock
10MHz
PPS
GPS NTP
GPS Time Code
IRIG-B
IRIG
IRIG B
time code generator
PCIe
PCI

Contracts

Latest awards and orders

  1. 15DDST25P00000094Purchase orderDepartment of JusticeDrug Enforcement AdministrationLatest action
  2. N6449823P5247Purchase orderDepartment of DefenseDepartment of the NavyLatest action
  3. FA930222P0035Purchase orderDepartment of DefenseDepartment of the Air ForceLatest action
  4. 15DDST22P00000055Purchase orderDepartment of JusticeDrug Enforcement AdministrationLatest action
  5. N6600122P6059Purchase orderDepartment of DefenseDepartment of the NavyLatest action
  6. N6893621P0143Purchase orderDepartment of DefenseDepartment of the NavyLatest action
  7. FA930218P5128Purchase orderDepartment of DefenseDepartment of the Air ForceLatest action
  8. 6973GH20P01825Purchase orderDepartment of TransportationFederal Aviation AdministrationLatest action
  9. 15DDST19P00000062Purchase orderDepartment of JusticeDrug Enforcement AdministrationLatest action
  10. DTFACT17F00052Delivery orderunder a federal supply schedule (FSS)Department of TransportationFederal Aviation AdministrationLatest action

Contact Info

As of . Source: SAM.gov Points of Contact.

SAM.gov registration for MASTERCLOCK, INC. lists a physical address and a separate mailing address, along with 2 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.

Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).

Physical Address

2484 W CLAY ST

SAINT CHARLES, MO, 63301

USA

Mailing Address

2484 W CLAY ST

SAINT CHARLES, MO, 63301

USA

Government Business Contact

Alex Persons

2484 WEST CLAY STREET

SAINT CHARLES, MO, 63301

USA

Electronic Business Contact

Alex Persons

2484 WEST CLAY STREET

SAINT CHARLES, MO, 63301

USA

Additional Details

As of . Source: SAM.gov Entity Registration.

MASTERCLOCK, INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires September 3, 2027.

Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.

Compliance & Risk Assessment

Source: SAM.gov FAR responses

Suspension/Debarment Status

SAM.gov registration reports no active exclusion

Public Display

Entity information is publicly displayed

Disaster Relief Registry

Not registered for disaster relief

Bonding Information

No bonding information provided

EDI

Not declared in SAM.gov

Business Structure

Source: SAM.gov
Profit Structure:For Profit Organization
Organization:Manufacturer of Goods

Registration Details

Source: SAM.gov

Initial Registration

Jan 7, 2002

Last Update

Sep 4, 2026

Registration Activation

Active — Sep 4, 2026

Fiscal Year End

1231

Country of Incorporation

USA

Congressional District

03

Other contractors in Missouri with primary NAICS 334220